Using a level to loop over app data

You can loop and repeat the creation of report elements using data from the Qlik Sense app.

For an overview of levels, see Working with levels.

High-level workflow

This is the recommended workflow for using levels in your PixelPerfect report. It covers some of the most common and simple ways to work with levels in the designer.

Part 1: Add data bindings

First, you need to add the data binding that will be used to cycle the generation of unique report elements. For example, if you want a separate section in the report for each region, you need to add a Region field as a data binding. Data bindings are added in the Field List menu.

This workflow assumes you already have content, in the applicable areas in the template, for which you want to create a level.

执行以下操作：

1. Open the Field List menu available from the right-side panel in the designer.

2. Click the plus icon next to Levels.

3. Expand the sections to find the item you want to use. You can select a field from Fields, or an entire chart from any of the sheet sections.

4. Click the icon next to an item to add it as a data binding.

Part 2: Connect the data binding to the band

Next, you need to connect the level data binding to a band.

You cannot bind a level to the default Detail1 band, so you will need to create a new DetailReport band for content where you plan on using a level.

执行以下操作：

1. Create a new DetailReport band. See Creating a new band.

2. Select the new band, if not already selected.

3. Open the Properties menu from the right side of the designer.

4. Under Detail Report Tasks > Data Member, select the item to use as the level.

Example - Looping chart images over a dimension

请参阅此处的应用程序源示例：示例材料 - 应用程序中报告。上传应用程序和数据文件到空间，然后重新加载应用程序。即可完成示例。

Part 1: Add data bindings

执行以下操作：

1. Create a new PixelPerfect template.

2. Open the Field List in the designer.

   

3. Click the plus icon next to Levels.

4. Expand Fields, and click the icon next to the Region chart.

   The data binding is added.

5. You are brought back to the main Field List menu. Click the plus icon next to Images.

6. Expand the Dashboard sheet, and click the icon next to the Top 5 Customers chart.

   The data binding is added.

   

Part 2: Add band and content

执行以下操作：

1. On the design surface, right-click the Detail1 band and select Insert Band > DetailReport.

2. Open the Field List menu, and double-click Levels to expand it.

3. For Region, expand the level object and drag the Region field within it onto the DetailReport1 band.

   Position the label at the top of the band.

4. In the Field List menu, expand Images and drag Top 5 Customers onto the DetailReport1 band. Place it below the Region label.

You can customize and style the content as desired.

Part 3: Bind the level to the band

执行以下操作：

1. Click the DetailReport1 band.

2. Open the Properties menu from the right side of the designer.

3. Under Detail Report Tasks > Data Member, select the Region field.

   

4. In the top right corner, click Save template.

5. Click Preview report. Download the report and open it.